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Adding support for background tasks that do not have httpcontext #6

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29 changes: 23 additions & 6 deletions src/LightInject.Web/LightInject.Web.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -112,13 +112,15 @@ public void Dispose()
public class PerWebRequestScopeManager : ScopeManager
{
private const string Key = "LightInject.Scope";
private Scope DefaultScope;

/// <summary>
/// Initializes a new instance of the <see cref="PerWebRequestScopeManager"/> class.
/// </summary>
/// <param name="serviceFactory">The <see cref="IServiceFactory"/> to be associated with this <see cref="ScopeManager"/>.</param>
public PerWebRequestScopeManager(IServiceFactory serviceFactory) : base(serviceFactory)
{
DefaultScope = new Scope(this, null);
}

/// <summary>
Expand All @@ -127,24 +129,39 @@ public PerWebRequestScopeManager(IServiceFactory serviceFactory) : base(serviceF
public override Scope CurrentScope
{
get { return GetOrAddScope(); }
set { HttpContext.Current.Items[Key] = value; }
set
{
if (HttpContext.Current != null)
{
HttpContext.Current.Items[Key] = value;
}
}
}

/// <summary>
/// Ends the scope associated with the current <see cref="HttpContext"/>.
/// </summary>
public static void EndContextScope()
{
var scope = (Scope)HttpContext.Current.Items[Key];
if (scope != null)
if (HttpContext.Current != null)
{
scope.Dispose();
HttpContext.Current.Items[Key] = null;
var scope = (Scope)HttpContext.Current.Items[Key];
if (scope != null)
{
scope.Dispose();
HttpContext.Current.Items[Key] = null;
}
}
}

private Scope GetOrAddScope()
{
// use global scope if httpcontext isn't set - this will happen for background jobs
if (HttpContext.Current == null)
{
return DefaultScope;
}

var scope = (Scope)HttpContext.Current.Items[Key];
if (scope == null)
{
Expand Down Expand Up @@ -174,4 +191,4 @@ protected override IScopeManager CreateScopeManager(IServiceFactory serviceFacto
return new PerWebRequestScopeManager(serviceFactory);
}
}
}
}